#2427A9#2427A9

#2427A9 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.9% C 0.199 H 270.9°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#2427A9
RGB	rgb(36, 39, 169)
HSL	hsl(239, 65%, 40%)
HSV	hsv(239, 79%, 66%)
CMYK	cmyk(78.7%, 76.9%, 0%, 33.7%)
CIE-LAB	lab(25.83, 44.27, -68.66)
CIE-LCH	lch(25.83, 81.69, 302.81°)
OKLab	oklab(37.95% 0.0032 -0.1988)
OKLCH	oklch(37.95% 0.199 270.9)
XYZ	xyz(8.6121, 4.6897, 37.9797)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2427A9 #A9A624

analogous

#2469A9 #2427A9 #6424A9

triadic

#2427A9 #A92427 #27A924

tetradic

#2427A9 #A92469 #A9A624 #24A964

square

#2427A9 #A92469 #A9A624 #24A964

split-complementary

#2427A9 #A96424 #69A924

monochromatic

#0F1044 #191B77 #2427A9 #363AD4 #686BDF

Accessibility & contrast

On white

10.83

#2427A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#2427A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2427A9

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2427A9	#FFFFFF	#000000	##FFFFFF
##2427A9	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044AD

Deuteranopia (green-blind)

#0036A7

Tritanopia (blue-blind)

#004E67

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2427a9;
/* rgb */ color: rgb(36, 39, 169);
/* oklch */ color: oklch(37.9% 0.199 270.9);

Tailwind

colors: {
  custom: {
    50: '#7763c4',
    500: '#2427a9',
    950: '#000000',
  },
}

SCSS

$custom: #2427a9;
$custom-light: #7763c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2427a9",
  "rgb": {
    "r": 36,
    "g": 39,
    "b": 169
  },
  "hsl": {
    "h": 238.647,
    "s": 64.878,
    "l": 40.196
  },
  "oklch": {
    "l": 0.37948,
    "c": 0.19885,
    "h": 270.9
  },
  "luminance": 0.04691
}

Semantic roles & 50–950 ramp

primary

#2427A9

secondary

#C5C364

accent

#E440E8

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0513

muted

#7C7A82

Preview Lab

Preview with #2427A9

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →